Lubricator for forging press-dies.



R. H. WILDER L J. C. KAUMEIER.

LUBRICATOR FOR FGRGING PRESS DIES.

APPLICATxoN FILED APR. 22. 1918.

1,284, l 68. Patnted Nov. 5, 1918.

aTLB.

J. E Kaumeer'.

'ITE STA l onrron.

RICHARD H. WIDER ANI) JOHN C. KAUMEIER, OF PORT HURON, MICHIGAN.

LUBRICATOR FOR FORGING PRESS-IDEES.

Specification of Letters Patent.

Patented Nov. 5, 1918.

Application led April 22, 1918. Serial N o. 230,099.

To all whom 'it may-concern:

Be it known that we, RICHARD H. WILDER,

Va subject of the King of Great Britain, a

resident of VPort Huron, in the county of St. Clair and State of Michigan, and JOHN C.

Y KAUMnmR, a citizen of the United States of America, and a resident of Port Huron,

in thecounty of St. Clair and State of Michigan, have jointly invented certain new and useful Improvements in Lubricators for Forging Press-Dies, of which the following is a specification.

The present invention relates to lubricai tors, and has particular reference to an imand pockets of the dies, and also that excess oil is supplied to various portions of the dies, causing blowouts and disgurement of the'forgings or, if allowed to iow out, would be lost or wasted.

It is an object of this invention to overcome thesel disadvantages and difficulties by providin a lubricator capable of spraying oil into tghe dies and to all of the crevices and pockets therein, and to evenly distribute the oil and graphite over the entire inner surfaces of the dies.

The invention further aims at the provision of a lubricator with means for maintaining the oil and graphite in a thoroughly mixed, and in a free fiowing condition, and to also maintain the lubricant properly heated so that the lubricant may easily pointed out, and in spread over the inner surfaces of the dies and thoroughly lubricate the same.

l The above, and various other objects and advantages of this invention will be in part artV become apparent,

from the' following etailed description of the present preferred embodiment, the same A being illustrated in the accompanying drawing, wherein,

Figure 1 is a perspective view of a conven- V tional form of forging press having a lubrlcator constructed according to the present invention applied thereto.Y v A' Fig. 2 is a fragmentaryl enlarged longitudinal section through theV supply container and the parts directly connected thereto.

of the nozzle employed. i

Fig. l is a fragnientaryfurther enlarged section taken longitudinally through one'of the oil valves, showing the conical structureV of the nozzle and valve, and the view showing in dotted -lines the connection to the oil supply ppe- Fig. 5 is asimilar view through the air valve and tiptherefor.

Fig. 6 is a vertical section through'the upper and lower dies of a forging press, showing the same separated and'illustrating the application of the nozzle of this invention arranged between the dies.

' 60 Fig. 3 is a detail enlarged side elevation Fig. 7 is an enlarged side elevation of the complete nozzle.

Referring to this drawing, A designates a forging press of conventional form, and which is fitted with upper and lower'dieV sections B and C. Y

The lubricator comprises a casing or container 10 which may be of cylindrical form and supported'by brackets 11 to one side of the press, or to any convenient means of support for sustainingthe container at the desired elevation. The containerV lOhas a head or bottom 12 upon'its lower end within which is formed a'bearing for the lower` end of an agitator shaft 13 which rises centrally through the container and has bearing near its upper end in a cross arm 14: detachably 4 f secured across the top of the container. "Any suitable means may be provided forturning the shaft 13, such as a pulleyv15 mounted on the shaft and an operating belt-16 trained over the pulley. l

The lower end of the shaft 13 is provided with any desired number of paddles 17 which may be perforated as shown and which outstand from the shaft to engage in the mass of lubricant which isadapted to'rbe poured into the container 10. Theagitator maintains the lubricant mass in a thoroughly mixed state. The lubricant is heated by a pipe 18 which is looped downwardly through the cross arm 14 to a considerable extent and Vis connected at its upper ends to a steam pipe drain cock 20, and a supply pipe 21 is connectedY through th'e'head andA leads to the nozzle hereinafter described.

The nozzle. comprises a 'pair Vof tubes 22 connected by a T 23 intermediatetheir ends, and which preferably extends across the upper sides of the tubes 22. A branch pipe k24leads'froml 'the T 23 to a coupling 25 to which the lower end of the feed pipe 21 is connected. A valve 26 is preferably interposed in the feed pipefor controlling "flow ofthe lubricant to the nozzle. A cross brace v27 in theform-,of va clamp is secured across the fupper'and lower sides of the tubes 22 for"securing the saine together, and is preferably-. -locatednear the outer ends of the tubes. ADetachably threaded on the y outer ends of thetubes are tips 28 conical in form'fand through which A the oil land graphite are sprayed. As shown in Fig. 24,* each tube 22.has a rvalve `stem 29 extendaxially therethrough and provided with a tapering valve head 30 uponqits outer end adapted to litin the nozzle 28 and not only control the passage of the lubricant therethrough, but also break up the lubricant into a line spray. 4The inner end of vthe stem 29 passes through apacking box 31 formed in theinner end of the tube 22. An expansion Aspring32 is seated at one end againstjthe packingk box 31 and'bears at its other end against a shoulder 33 formed upon the stem 29 near its outer end. The spring 32 normally maintains the valve 30 closed. Y y

Between the tubes 22, and supported in the bracket 277 isan air tube 34 which, as s hownin Fig. 5, is of substantiallyfthe same length as thetubes22 and provided therein `with a sleeve valve 35 havinga port 36 in its'lower side adapted to open into a downwardly and inwardly directed Vnipple 87 to `which isattached one endof an air pipe 38 .which leads frem .an air supply pipe 39- A valve 40 is interposed in the air pipe 38 for controlling the fiowlof air under pressure to the tube lThe sleeve valve 35 has a stein 41 which 'projects inwardly from the tube 34 in parallelism with the stems 29. A hand lever 42 whichis substantially in the formof a `yoke and provided with upturned ears 43 is pivoted upon a bracket 44 secured tothe upper side of the branchl pipe 24, the

y handle 42 extending across the underside of thebranch pipe 24. A spring 45 is con- A'nected at one end to the lower part of the handle 42 its other end upon a hook 46 which rises frointhe tube 34 for norfmallylmantaining therear end of the handle `42K downward'from the pipe 2 4. The

-steni41'has' an `apejrturel47 yin its rear end .ma'nsof which thestem is pivoted to the .lwe Bud. .of the, lererAQ. `The Stems 29,

hwever, are provided 'upon their inner ends Vwith longitudinal lslots 48 through which ypins 49 pass, whichpinsfpr'ojec't outward from the' lower lendso'f the' hand lever 42. There is thus a lost motion between the air and,` fluid valves.

The forward end of the air tube 34 is provided with a T-shaped tip 50 the ports of which open laterally and toward the ports ofthe tips 28 whereby the'j'ets of air under pressure create suction at the tips 28 and draw'the lubricant from the tubes 22 and spray the lubricant in the desired mannen v y VThe coupling 25 is provided with a depending shank 51 pivotally ,1 nounted in a jbraclzet 52vsecuredto the side of the forging press A in position to support the nozzle betveenthe die; .Sections B' and. Oies Shown in Fig. 6, when the nozzle is swung inward.

l/Yhen the nozzle is in position vthe tubes 22 are arranged one above theother with -a jet foreach die section B `and Cv as clearly shown in Figs. 1 and 6. I

The operation isl apparent, for whenthe valves 26 and 4 0 areopenthedubricant and the air are Afedto the tubes 22 and 34; When the diesareseparated the Ano zzleis swung into position between the vdies and the handle 42 is pressed against the p ipe 2 4 tothe desired distance. The'initial movement of ,the handle opens the air valve 35 onlyto supply air to, thetip .5() and thus create a suction at the. tips .2.5i Further movement ofthe handlfe'opens the valves 30 and admits the `flow ofthe lubricant from thetip's 28. As the tip 50 has its orifices directed toward thewnavtes ofthe `die Sections B and C, the lubricant issuing'from the tips 28 is sprayed directly into the die sections fand Ais diffused over a relatively large areaeso lthat all the crevices and pockets in the dies are reached. Y

rI he quantity of lubricant may thus be manually controlled and "regulatedv to v Supplyaquantity Vof lubricant proportionate to the depth and size iof the concavities inf'jthe' dies. The dies thus lthoroughly lubricated prevent the stickingofv forgings andfthe like therein, prevent disiigureinent of the forgings andthe overheating of the"`dies,

and will offset to a largeextent the cracking 1. In a' lubricator, the combination-.witha machine having movable parts, of a container for lubricant adapted to be supported above said parts, a nozzle pivoted to the machine adapted to be swung into the path of said parts when moved out of the way, and a connection between the nozzle and the container for supplying liquid lubricant to the nozzle.

2. In a lubricator, the combination of a container, a heating pipe projecting into the container, an agitator mounted in the container for mixing the lubricant While being heated, and a portable nozzle connected to the container for spraying the lubricant.

3. In a lubricator, the combination of a container, a sprayer nozzle communicating with the container and having a valve therein, a compressed air nozzle connected to the sprayer nozzle and having a valve therein, and a handle on the sprayer nozzle connected to both of said valves for operating the same to admit the escape of air under pressure for drawing the lubricant out of the sprayer nozzle.

4. 'In a lubricator, the combination of a container, a sprayer nozzle connected to the container and having a valve therein,

a compressed air nozzle connected to the sprayer nozzle and having a valve therein,

'rily opening the air nozzle prior to the opening of the sprayer nozzle.

5. In a lubric-ator, the combination of a container, a nozzle connected to the container, and air pressure nozzle, saidnozzles having tips arranged in proximity and at an angle to each other, valves in said nozzles, and a common means for operating the valves to control the feeding and spraying of the lubricant from the nozzles.

6. In a lubricator, thecombination of a container, a nozzle connected to the container, an air feeding nozzle arranged adjacent to the first nozzle, a valve for each nozzle and an operating handle connected to both valves with a loose connection with the air nozzle valve for primarily opening the lubricant nozzle and primarily closing the lubricant nozzle during the operation of the lubricator.

RICHARD' H. wILDER. JOHN o. KAUMEIER.

Copies of this patent may be obtainedl for ve cents cach, by addressing the "Commissioner on Patenti,

Washington, D. 0. Y' 

